Math CentralQuandaries & Queries


Question from lupio:

a problem asks for the area of a sector in a circle,no central angle,in circle is given only 5cm radius, three answers 180-90-35
can't find a way to start.Help

Hi Lupio,

I agree that there is something confusing here. The question is to find an area and yet three answers you give look like angle measurements. Do the three answers have units? Could it be that the question is

Find the area of a sector of a circle of radius 5 cm if the central angle is
a) 180 degrees
b) 90 degrees
c) 35 degrees


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